840076244 has 24 divisors (see below), whose sum is σ = 1688127168. Its totient is φ = 358323840.

The previous prime is 840076213. The next prime is 840076253. The reversal of 840076244 is 442670048.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65189 + ... + 77004.

It is an arithmetic number, because the mean of its divisors is an integer number (70338632).

Almost surely, 2^840076244 is an apocalyptic number.

It is an amenable number.

840076244 is an abundant number, since it is smaller than the sum of its proper divisors (848050924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

840076244 is a wasteful number, since it uses less digits than its factorization.

840076244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142415 (or 142413 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 840076244 is about 28984.0687964958. The cubic root of 840076244 is about 943.5673424901.

The spelling of 840076244 in words is "eight hundred forty million, seventy-six thousand, two hundred forty-four".